<template>
  <div>
    <!-- Header 区域 -->
    <van-nav-bar
      fixed
      title="文章详情"
      left-arrow
      @click-left="$router.back()"
    />

    <!-- 文章信息区域 -->
    <div class="article-container">
      <!-- 文章标题 -->
      <h1 class="art-title">{{ detail.title }}</h1>

      <!-- 用户信息 -->
      <van-cell center :title="detail.aut_name" :label="detail.pubdate">
        <template #icon>
          <img :src="detail.aut_photo" alt="" class="avatar" />
        </template>
        <template #default>
          <div>
            <van-button
            type="info"
            size="mini"
            v-if="detail.is_followed"
            @click="updateFollow"
            >已关注
            </van-button>
            <van-button
            icon="plus"
            type="info"
            size="mini"
            plain
            v-else
            @click="updateFollow"
            >关注
            </van-button>
          </div>
        </template>
      </van-cell>

      <!-- 分割线 -->
      <van-divider></van-divider>

      <!-- 文章内容 -->
      <div class="art-content" v-html="detail.content"></div>

      <!-- 分割线 -->
      <van-divider>End</van-divider>

      <!-- 点赞 -->
      <div class="like-box">
        <van-button
          icon="good-job"
          type="danger"
          size="small"
          v-if="detail.attitude === 1"
          @click="giveLike"
        >
          已点赞
        </van-button>
        <van-button
        v-else
        icon="good-job-o"
        type="danger"
        plain
        size="small"
        @click="giveLike"
        >
          点赞
        </van-button>
      </div>
    </div>
  </div>
</template>

<script>
import { articleDetailAPI, followedUserAPI, unFollowedUserAPI, giveLikeApi, unGiveLikeApi } from '@/api'
export default {
  name: 'detail-index',
  data () {
    return {
      detail: {}
    }
  },
  methods: {
    // 点赞 取消赞
    async giveLike () {
      if (this.detail.attitude === 1) {
        // 取消赞
        await unGiveLikeApi({ target: this.detail.art_id })
        this.detail.attitude = -1
      } else {
        await giveLikeApi({ target: this.detail.art_id })
        this.detail.attitude = 1
      }
    },
    // 点击关注 取消关注
    async updateFollow () {
      if (this.detail.is_followed) {
        // 取关
        await unFollowedUserAPI({ uid: this.detail.aut_id })
      } else {
        // 关注
        await followedUserAPI({ target: this.detail.aut_id })
      }
      this.detail.is_followed = !this.detail.is_followed
    },
    // 初始化详情
    async fetchDetail () {
      const { data } = await articleDetailAPI(this.$route.query.id)
      // console.log(data, '详情')
      this.detail = data
    }
  },
  created () {
    this.fetchDetail()
  },
  activated () {
    this.fetchDetail()
  }
}
</script>

<style scoped lang="less">
.article-container {
  padding: 10px;
  margin-top: 46px;
}
.art-title {
  font-size: 16px;
  font-weight: bold;
  margin: 10px 0;
}

.art-content {
  font-size: 12px;
  line-height: 24px;
  width: 100%;
  overflow-x: scroll;
  word-break: break-all;
  /deep/ img {
    width: 100%;
  }
  /deep/ pre {
    white-space: pre-wrap;
    word-wrap: break-word;
  }
}

.van-cell {
  padding: 5px 0;
  &::after {
    display: none;
  }
}

.avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #f8f8f8;
  margin-right: 5px;
  border: none;
}

.like-box {
  display: flex;
  justify-content: center;
}
</style>
